CN101932472A - The power unit that is used for vehicle - Google Patents
The power unit that is used for vehicle Download PDFInfo
- Publication number
- CN101932472A CN101932472A CN2009801040198A CN200980104019A CN101932472A CN 101932472 A CN101932472 A CN 101932472A CN 2009801040198 A CN2009801040198 A CN 2009801040198A CN 200980104019 A CN200980104019 A CN 200980104019A CN 101932472 A CN101932472 A CN 101932472A
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- China
- Prior art keywords
- centrifugal clutch
- crankcase
- power unit
- vehicle
- wet
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/035—Gearboxes for gearing with endless flexible members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M7/00—Motorcycles characterised by position of motor or engine
- B62M7/02—Motorcycles characterised by position of motor or engine with engine between front and rear wheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D43/18—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K2202/00—Motorised scooters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/06—Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/06—Lubrication details not provided for in group F16D13/74
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/0203—Gearboxes; Mounting gearing therein the gearbox is associated or combined with a crank case of an engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
- F16H2057/02065—Gearboxes for particular applications for vehicle transmissions for motorcycles or squads
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Details Of Gearings (AREA)
- Arrangement Of Transmissions (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
A kind of vehicle power unit (20) is provided, and this power unit comprises: and crankcase (23L, 23R); V-belt formula toric transmission (35), it comprises the rotating band wheel shaft (38) and with bent axle (37) parallel driven belt wheel shaft (39) coaxial or parallel with bent axle (37); Change speed gear box (67), it is positioned at crankcase, and (23L on side 23R), and holds V-belt formula toric transmission (35); Power unit output shaft (43), it is positioned at crankcase, and (23L on opposite side 23R), and is delivered to power the drive wheel (14) of vehicle from combustion engine (21) by power drive system (22); And wet-type centrifugal clutch (95), it is arranged in crankcase, and (23L on side 23R), and is delivered to power unit output shaft (43) with power from driven belt wheel shaft (39) off and on.In vehicle power unit (P), bent axle (37) is installed in the vehicle along the horizontal direction of vehicle.The centrifugal clutch chamber (89) that holds wet-type centrifugal clutch (95) is arranged in crankcase, and (centrifugal clutch chamber (89) are covered by change speed gear box (67) in the outside transversely of vehicle for 23L, outside 23R).Allow oil level set for such as such structure and both be applicable to that bent axle (37) also is applicable to the level of wet-type centrifugal clutch (95), and guarantee crankcase (23L, rigidity 23R).
Description
Technical field
The present invention relates to be used for the power unit of the vehicle such as motor bike, relate more specifically to for the improvement of the layout of wet-type centrifugal clutch with for the improvement that separates the separator of battery plates of wet-type centrifugal clutch from bent axle.
Background technology
Known vehicle is provided with the V-belt drive stepless speed variator with power unit, and this V-belt drive stepless speed variator is arranged on the side of crankcase of encapsulation bent axle (for example, with reference to patent documentation 1).In this power unit, wet-type centrifugal clutch connects the driven pulley of V-belt drive stepless speed variator effectively and is used for the final output shaft of the power unit of transmission of power.In this power unit, the space that is used for bent axle communicates with each other by big opening with the space that is used for wet-type centrifugal clutch.Therefore, can not determine to be applicable to respectively the lubricated oil level of bent axle and wet-type centrifugal clutch separately.Owing to be provided with big opening in the crankcase, therefore, be difficult to form the crankcase of rigid construction.Improve the right part of power unit and the weight balancing of left part, reduce size and improve the cleaning convenience also have leeway.
Patent documentation 1:WO 2003/085278 (referring to Fig. 2)
Summary of the invention
The subject matter that the present invention will solve
Thereby, the objective of the invention is bent axle and wet-type centrifugal clutch to be separated each other by partition wall, make it possible to set the lubricated oil level that is suitable for lubricated described bent axle and described wet-type centrifugal clutch respectively, form the bent axle of rigidity, and provide that improved power unit, the right part of this power unit and left part have satisfied weight balancing, size is little and can be convenient to clean operation.
Solve the means of this subject matter
To achieve these goals, the invention provides a kind of power unit, this power unit comprises: crankcase, and this crankcase encapsulates the bent axle of combustion engine, and is parallel to the width horizontal expansion of vehicle; V-belt drive stepless speed variator, this V-belt drive stepless speed variator comprise the rotating band wheel shaft that rotates with described bent axle, be parallel to driven belt wheel shaft that described axle drive shaft extends, be installed in the driving pulley on the described rotating band wheel shaft, the V-belt that is installed in the driven pulley on the described driven belt wheel shaft and extends between described driving pulley and described driven pulley; Change speed gear box, this change speed gear box are arranged on the side of described crankcase, and encapsulate described V-belt drive stepless speed variator; Final output shaft, this final output shaft is arranged on the opposite side of described crankcase, the output of described combustion engine is delivered to the drive wheel of vehicle by transmission mechanism; Wet-type centrifugal clutch, this wet-type centrifugal clutch are arranged on the side of described crankcase, are used for the described final output shaft of described driven belt wheel shaft and described power unit is connected effectively or separates; And the centrifugal clutch shell, this centrifugal clutch shell is defined for the centrifugal clutch chamber that keeps described wet-type centrifugal clutch therein; Wherein, the described centrifugal clutch shell that encapsulates described wet-type centrifugal clutch is arranged in the outside of described crankcase, and the lateral outer ends of described centrifugal clutch chamber is covered by described change speed gear box.
In power unit according to the present invention, when when horizontal direction is watched, the foot pedal starting gear chamber is formed on the below in the space between described bent axle and the described wet-type centrifugal clutch, and with the internal communication of described crankcase.
In power unit according to the present invention, preferably, this power unit is installed on the vehicle, makes on the opposition side of central axis of the central axis of cylinder-bore and the main frame that described V-belt drive stepless speed variator lays respectively at car body.
Be typically, described crankcase and described change speed gear box are foundry goods, and be included in clutch drum in the described wet-type centrifugal clutch be arranged in the junction surface that comprises described crankcase and described change speed gear box the plane.
Described V-belt can be in the lateral outer side of the face of joint between described change speed gear box and the transmission case cover.
Preferably, the fixed part of described driven pulley is arranged in the lateral outer side of the face of joint between described change speed gear box and the described transmission case cover.
The invention effect
According to the present invention, keep the centrifugal clutch chamber of described wet-type centrifugal clutch to be arranged in the outside of described crankcase.Therefore, described bent axle and described wet-type centrifugal clutch separate each other, and can set different lubricated oil levels easily, and the partition wall that described bent axle and described wet-type centrifugal clutch are separated each other has strengthened the rigidity of described crankcase.
Because described wet-type centrifugal clutch is arranged in the outside of described crankcase, and the outer end of described wet-type centrifugal clutch is covered by described change speed gear box, therefore, can under the situation of not using optional feature, form described wet-type centrifugal clutch chamber, therefore, the formation of described wet-type centrifugal clutch chamber does not increase manufacturing cost.
When laterally watching, described foot pedal starting gear chamber is formed on the below in the space between described bent axle and the described wet-type centrifugal clutch, and with the internal communication of described crankcase.Therefore, the volume of described foot pedal starting gear chamber can be used as and is used to hold the additional volume of lubricating oil and the volume of food tray, and therefore, the optimal volume of lubricating oil can be used for setting best lubricated oil level.
Because described power unit is installed on the vehicle, make on the opposition side of central axis of the central axis of cylinder-bore and the main frame that described V-belt drive stepless speed variator lays respectively at car body, therefore, the corresponding weight of the described laterally relatively portion of described power unit balance preferably each other.
Because described crankcase and described change speed gear box are foundry goods, and in the face of joint of the clutch drum of described wet-type centrifugal clutch between described crankcase and described change speed gear box, so described power unit has following effect.Described clutch drum is the maximum part of described wet-type centrifugal clutch, and the open end that wherein forms face of joint of described foundry goods case has maximum area respectively, and this is because the sidewall design of described case becomes to be convenient to remove the foundry goods case from mould.Described change speed gear box can be by maximum part being placed on the plane that comprises the face of joint of wide open end and is formed with small size.
Because described V-belt extends in the lateral outer side at the junction surface of described change speed gear box and described transmission case cover, therefore, changes described V-belt easily.Because the described transmission case cover that can remove easily occupies the main portion of described change-speed box chamber, therefore, can clean described change-speed box chamber easily.
The extension of the lateral outer side of the face of joint of the described fixed part of described driven pulley between described change speed gear box and described transmission case cover is convenient to clean the inside of described change-speed box chamber.
Description of drawings
Fig. 1 is the lateral plan that is provided with the motor bike of the power unit in the preferred implementation of the present invention;
Fig. 2 is the lateral plan of the power unit that obtains of the right side from motor bike;
Fig. 3 is the lateral plan that the power unit that obtains from the left side of motor bike is shown;
Fig. 4 is that the line IV-IV along Fig. 2 or Fig. 3 cuts open the portion of getting and looks expansion drawing; And
Fig. 5 is that the line V-V along Fig. 2 or Fig. 3 cuts open the sectional stretch-out view of getting.
Description of reference numerals
20 power units, 23 crankcases, the left half-shells of 23L crankcase, the right half-shells of 23R crankcase, 35V shape continuously variable belt transmission, 36 reduction gears, 37 bent axles, 38 rotating band wheel shafts, 39 driven belt wheel shafts, 41 tween drive shafts, the 41a intermediate speed pinion, 42 intermediate gears, 43 final output shafts, 44 output gears, 66 generators cap, 67 change speed gear boxs, 68 transmission case covers, 70 cylinder-bore, 84 crankshaft room, reducing gear chambers 86,87 generator rooms, centrifugal clutch chambers 89, change-speed box chambers 90,92 driving pulleys, 94 driven pulleys, 95 wet-type centrifugal clutch, 99 foot pedal starting gear chamber, 121 internal clutch lid, 122 internal lobes, 124 clutch weights, 125 clutch drums, 126 clutch output gears
The specific embodiment
Fig. 1 shows the lateral plan of the motor bike 1 of the power unit 20 that is provided with in the preferred implementation of the present invention.Motor bike 1 has main body F, and this main body F comprises: the preceding pipe 2 that is positioned at the front end of main body F; Main frame 3, this main frame 3 are managed 2 in the past and are extended, and have a down dip backward; Left and right sides pivot frame 4, this left and right sides pivot frame 4 is fixed to the rearward end of main frame 3, and downward-sloping.Left and right seat rail 5 be attached to main frame 3 near the part the pivot frame 4, and tilt backward.Seat rail 5 has crooked pars intermedia respectively.Central frame 6 extends between the pars intermedia of seat rail 5 and pivot frame 4 respectively.
Between the left and right seat rail 5 of main body F, place containing box 7 etc.Seat 8 covers containing box 7 etc. from the top.Seat 8 becomes and covers and open containing box 7 etc.Handle 9 is supported on the front portion of main body F by preceding pipe 2, turning to.Front fork 10 is managed 2 in the past and is extended downwards, and front-wheel 11 rotatably is supported on the bottom of front fork 11.Back vent 13 extends back from pivot frame 4.Back vent 13 has leading section and rearward end, and described leading section is supported on the pivot frame 4 pivotly by pivot 2, and described rearward end rotatably supports trailing wheel 14.Back vent 13 can swing up and down in perpendicular about pivot 12.Rear shock absorber 15 extends between the rearward end of back vent 13 and seat rail 5 respectively.Power unit 20 is arranged in the position of the front portion of the below of main frame 3 and pivot frame 4, and suspends from main frame 4.
Fig. 2 is the lateral plan of the power unit 20 that obtains of the right side from motor bike.The shell of torque transfer 22 is described with reference to Fig. 4 after a while.Crankcase 23 is by forming in conjunction with right half-shells 23R and left half-shells 23L.With reference to Fig. 2 that right half-shells 23R is shown, carriage 31 is outstanding downwards from the middle part of the main frame 3 of motor bike.Installation bracket 23a is outstanding from the upper surface of right half-shells 23R and left half-shells 23L respectively, and is connected with carriage 31 by axle 16.Installation bracket 23b is outstanding from the top of the rear surface of right half-shells 23R and left half-shells 23L, and is connected with the top of pivot frame 4 by axle 17 respectively.Installation bracket 23c is outstanding from the bottom of the rear surface of right half-shells 23R and left half-shells 23L, and is connected with the bottom of pivot frame 4 by axle 18 respectively.Therefore, power unit 20 fixed and arranged are below main frame 3 and the front portion of pivot frame 4.Main body F is coated with the synthetic resin lid 32 (Fig. 1) that forms by the assembling component parts.
With reference to Fig. 2, torque transfer 22 comprises V-belt drive stepless speed variator 35 and reduction gear 36.The axle of torque transfer 22 has been shown among Fig. 2.Be included in the front portion that bent axle 37 in the combustion engine 21 is arranged in crankcase 23.The right part of bent axle 37 is as the rotating band wheel shaft 38 that is included in the V-belt drive stepless speed variator 35.The driven belt wheel shaft 39 that is included in the V-belt drive stepless speed variator 35 is arranged in the rear portion of crankcase 23.Driving pulley 92 and driven pulley 94 are installed in respectively on rotating band wheel shaft 38 and the driven belt wheel shaft 39.V-belt 40 extends between driving pulley 92 and driven pulley 94, to form V-belt drive stepless speed variator 35.
With reference to Fig. 3 and 4, wet-type centrifugal clutch 95 is installed on the left part 39L of driven belt wheel shaft 39.The diameter of wet-type centrifugal clutch 95 equates substantially with the diameter of driven pulley 94.The left part 39L of driven belt wheel shaft 39 is as the input shaft of reduction gear 36.Reduction gear 36 has as the left part 39L of the driven belt wheel shaft 39 of input shaft, tween drive shaft 41 and output shaft 43.The output shaft 43 of reduction gear 36 is also as the final output shaft of power unit 20.On these 39L, 41 and 43, gear is installed, to form reduction gear 36.Final output shaft 43 is outstanding left from the rear portion of the left half-shells 23L of crankcase 23.The rotary driving force of power unit 20 is delivered to follower by final output shaft 43.Drive sprocket 45 is installed on the final output shaft 43, and driven sprocket 46 (Fig. 1) combines with trailing wheel 14, and driving chain 47 extends between drive sprocket 45 and driven sprocket 46, with the output rotary driving force to trailing wheel 14 transferring power unit 20.
Fig. 3 illustrates the lateral plan of the power unit 20 that obtains from the left side of motor bike 1.Shown in Fig. 3 is left half-shells 23L, and this left side half-shells 23L is provided with opening and around the closed-wall 106 of this opening.Power unit 20 comprises electric starter structure 48 and foot pedal starting mechanism 49.Electric starter structure 48 comprises: Drive pinion 51, and this Drive pinion 51 is installed on the output shaft of Starting motor 50; Tween drive shaft 52; Be installed in the gear on the tween drive shaft 52; And driven gear 53, this driven gear 53 is installed on the left part of bent axle 37.Electric starter structure 48 is a reduction gear.
Foot pedal starting mechanism 49 comprises: foot-operated axle drive shaft 54; Foot-operated arm 56, an end of this foot-operated arm 56 is connected with axle drive shaft 54; Stretcher 57, this stretcher 57 are attached to the other end of foot-operated arm 56; First tween drive shaft 58; Second tween drive shaft 60; Be installed in the gear on these; And driven gear 63, this driven gear 63 is installed on the right part of bent axle 37.Foot pedal starting mechanism 49 is a multiplying wheel mechanism.
Fig. 4 is the sectional stretch-out view that cuts open the power unit of getting 20 along the line IV-IV among Fig. 2 or Fig. 3.Cylinder block 24, cylinder head 25 and cylinder-cover jacket 26 are stacked on the front end of crankcase 23 in proper order with this, to form the shell of combustion engine 21.Piston 71 is assembled into and is used for crank motion in the cylinder-bore 70 that is formed at cylinder block 24.Piston 71 is connected with bent axle 37 by piston pin 72, crank pin 73 and connecting rod 74.
The torque transfer 22 of power unit 20 has main body, and this main body comprises: crankcase 23, and this crankcase 23 forms by right half-shells 23R and left half-shells 23L are bonded together; Generator cap 66, this generator cap 66 is attached to the left part of left half-shells 23L; Change speed gear box 67, this change speed gear box 67 is attached to the right part of right half-shells 23R; And transmission case cover 68, this transmission case cover 68 covers the open right-hand member of change speed gear box 67.
Crankcase 23 limits crankshaft room 84 and reducing gear chamber 86.Bent axle 37 supports among bearing 85A on right half-shells 23R and left half-shells 23L and the 85B and rotates.Bent axle 37 is in the transversely extension of the width that is parallel to motor bike.The part of reduction gear 36 is arranged in reducing gear chamber 86.
Generator room 87 is limited by left half-shells 23L and generator cap 66.The driven gear 53 of camshaft actuated sprocket wheel 77, electric starter structure 48 and alternating current generator 88 are installed on the left part 37L that extends along generator room 87 of bent axle 37.
Between right half-shells 23R and change speed gear box 67, limit centrifugal clutch chamber 89.Limit change-speed box chamber 90 between change speed gear box 67 and the transmission case cover 68.The bearing 85B that rotating band wheel shaft 38 (that is, the right part of bent axle 37) is crossed the right half-shells 23R of crankcase extends to the right in the centrifugal clutch chamber 89, and further extends in the change-speed box chamber 90 by being supported on the sealing member 91 on the change speed gear box 67.Bent axle 37 has the spline part that extends in centrifugal clutch chamber 89.The driven gear 63 of foot pedal starting mechanism 49 is installed on the spline part of bent axle 37.The right part that extends in change-speed box chamber 90 of bent axle 37 is rotating band wheel shafts 38 of V-belt drive stepless speed variator 35.The driving pulley 92 of toric transmission 35 combines with rotating band wheel shaft 38.
The driven belt wheel shaft 39 of V-belt drive stepless speed variator 35 is supported among the bearing 93A and 93B on right half-shells 23R and the change speed gear box 67.The driven pulley 94 of toric transmission 35 is installed on the part that is positioned at change-speed box chamber 90 of driven belt wheel shaft 39.Wet-type centrifugal clutch 95 and clutch output gear 126 are installed on the part of extending in centrifugal clutch chamber 89 of driven belt wheel shaft 39.Sealing element 96 is assemblied in the bearing opening that is formed in the change speed gear box 67, to keep supporting the bearing 93B of driven belt wheel shaft 39.
Separate with centrifugal clutch chamber 89 by change speed gear box 67 the change-speed box chamber 90 that is used for V-belt drive stepless speed variator 35.Gap in the opening (change-speed box chamber 90 and centrifugal clutch chamber 89 communicate with each other by this gap) is by sealing element 91 and 96 sealings, to prevent to be contained in oil leak in the centrifugal clutch chamber 89 in change-speed box chamber 90.
The driving pulley 92 of V-belt drive stepless speed variator 35 has fixes half drive division 108 and movable half drive division 109.Fixing half drive division 108 is fixedly mounted on the rotating band wheel shaft 38.Axially be supported on slidably on the sleeve 111 at movable half drive division 109 of fixing half drive division, 108 left sides, sleeve 111 is used for fixing and connects face cam 110 and rotating band wheel shaft 38.The slide unit 110a that makes progress in week that is placed on face cam 110 axially engages slidably with slide unit 109a, and slide unit 109a extends axially from the periphery of movable half drive division 109.Face cam 110 is with 109 rotations of movable half.Therefore, movable half drive division 109 can be with rotating band wheel shaft 38 rotation, and can be towards fixing half drive division 108 or leaving this and fix half drive division 108 and endwisely slip.V-belt 40 is bonded in the space of fixing between half drive division 108 and movable half drive division 109.
The back side towards face cam 110 of movable half drive division 109 is tapered, makes the more close face cam 110 of radially outer at this back side.Counterweight roller 113 is folded between the taper back side and face cam 110 of movable half drive division 109.When the rotating speed of rotating band wheel shaft 38 increased, counterweight roller 113 radially outward moved by centnifugal force, close half drive division 108 of fixing so that movable half drive division 109 moves right.Thereby the V-belt 40 that is bonded in the space of fixing between half drive division 108 and movable half drive division 109 is forced to radially outward be shifted, and the pitch circle diameter of driving pulley 92 increases.
V-belt drive stepless speed variator 35 by V-belt 40 with the transmission of power of rotating band wheel shaft 38 (that is, bent axle 37) to driven belt wheel shaft 39.When the rotating speed of rotating band wheel shaft 38 increased, counterweight roller 113 radially outward moved, and moves towards fixing half drive division 108 with movable half drive division 109 that forces driving pulley 92.Thereby V-belt 40 radially outward moves, and the pitch circle diameter of driving pulley 92 increases, and simultaneously, the V-belt 40 that is bonded in the space of fixing between half follower 117 and movable half follower 118 radially moves inward, to reduce the pitch circle diameter of driven pulley 94.Therefore, the rotating speed of driven belt wheel shaft 39 changes automatically and continuously.
Wet-type centrifugal clutch 95 is installed in centrifugal clutch chamber 89 on the left part 39L of driven pulley 39.Wet-type centrifugal clutch 95 has hub 122, and this hub 122 is provided with the lug with female splines centre hole.Hub 122 is installed in the male splines portion of driven belt wheel shaft 30.The clutch inner 121 that is included in the wet-type centrifugal clutch 95 remains on the hub 122 regularly.A plurality of pins 123 are arranged in the peripheral part of hub 122 regularly in the mode of circumferential array, to extend axially.Clutch weight 124 is supported on the pin 123 and turns.Clutch Outside spare or drum 125 have towards clutch weight 124 and around the cylindrical wall of clutch inner 121.
The rotation of clutch output gear 126 is by being delivered to the tween drive shaft 41 of reduction gear 36 with these clutch output gear 126 gears in meshs 42.The rotation of tween drive shaft 41 is delivered to final output shaft 43 by miniature gears 41a and gear 44 with the rotating speed that lowers.Therefore, the rotation of clutch output gear 126 is delivered to drive sprocket 45 with the rotating speed that lowers, and this sprocket wheel 45 is installed in from the left part that the left half-shells 23L of final output shaft 43 gives prominence to left.The rotation of the rev down of drive sprocket 45 is delivered to trailing wheel 14 by messenger chain 47, advances to drive motor bike 1.
With reference to Fig. 4, line A represents the outline line in the left side of main frame 3, and line B represents the outline line on the right side of main frame 3, and line C-C is the central axis of main frame 3, and the line of centers in the space between this central axis and line A and the B is corresponding.Line D-D is the central axis of cylinder-bore 70.Line E represents engaging of right half-shells 23R and left half-shells 23L.Line F represents engaging of right half-shells 23R and change speed gear box 67.Line G represents engaging of change speed gear box 67 and transmission case cover 68.
The line of centers D-D of cylinder-bore 70 and V-belt drive stepless speed variator 35 lay respectively on the opposition side of central axis C-C of main frame 3.The right part on the opposition side of the central axis C-C that lays respectively at main frame 3 of power unit 20 and the corresponding counterweight of left part be balance well each other.
Crankcase 23 and change speed gear box 67 are foundry goods.The junction surface F that the clutch drum 125 of wet-type centrifugal clutch 95 is positioned at the right half-shells 23R that comprises crankcase 23 and change speed gear box 67 the plane on.Clutch drum 125 is maximum parts of wet-type centrifugal clutch 95. Foundry goods case 23 and 67 the open end that wherein forms face of joint have maximum area respectively, and this is because foundry goods case 23 becomes to be convenient to remove foundry goods case 23 and 67 from mould with 67 sidewall design.Change speed gear box 67 by maximum part is placed on comprise the wideest open end junction surface F on interior plane and form with small size.
V-belt 40 is positioned at respect to the width of the main body of motor bike on the outside of junction surface G of change speed gear box 67 and transmission case cover 68, and this is convenient to change V-belt 40 after removing transmission case cover 68.Because the largest portion of change-speed box chamber 90 is limited by the transmission case cover 68 that removes easily, therefore, can clean change-speed box chamber 90 easily.With respect to the width of the main body of motor bike half one 117 of fixing of driven pulley 94 is placed on the outside of junction surface G of change speed gear box 67 and transmission case cover 68 and is more convenient for cleaning change-speed box chamber 90.
Fig. 5 illustrates the sectional stretch-out view that cuts open the foot pedal starting mechanism 49 in the bottom of the crankcase of getting 23 along the line V-V of Fig. 2 or 3.As shown in Figure 3, when when laterally watching, foot-operated axle drive shaft 54 is arranged in the below of the driven belt wheel shaft 39 of toric transmission 35.Foot pedal starting gear chamber 99 is extended below the space between bent axle 37 and the wet-type centrifugal clutch 95.Foot pedal starting gear chamber 99 is communicated with crankshaft room 84.Therefore, the volume of foot pedal starting gear chamber 99 can be used for holding lubricating oil and as the volume of the bottom (food tray) of crankshaft room 84.Therefore, power unit 20 can hold the lubricating oil of the optimal number that is in best oil level.
With reference to Fig. 5, foot-operated axle drive shaft 54 rotatably is supported on the right half-shells 23R and left half-shells 23L in the foot pedal starting gear chamber 99.Foot pedal starting gear chamber 99 is communicated with crankshaft room 84.The base end part of foot-operated arm 56 is installed on the foot-operated axle drive shaft 54.Stretcher 57 is connected and tiltable with the free end of foot-operated arm 56.The bearing portion 135 of left side half-shells 23L is for having thick-wall drum.Bearing portion 135 is outstanding left.The left part of axle drive shaft 54 extends through bearing portion 135 and outstanding from this bearing portion 135 left.The right part of axle drive shaft 54 is supported in the bearing portion in the protrusion that is formed at right half-shells 23R.Axle drive shaft 54 in the protrusion of the right half-shells 23R of return spring 64 coilings.Return spring 64 applies elastic force to axle drive shaft 54, will ride the initial position that axle drive shaft 54 and foot-operated arm 56 remain on them.Form on the right part that bossed retainer 131 is installed in axle drive shaft 54 and by spline and this right part interlocking.The projection of retainer 131 contacts with projection 132 on being formed on right half-shells 23R, remains on predetermined initial position will ride arm 56.
Driven wheel 55 be installed on the foot-operated axle drive shaft 54 and with bearing portion 135 adjacency.Foot-operated axle drive shaft 54 and driven wheel 55 are interlocked by serrations.The first short tween drive shaft 58 is arranged in the front portion of foot-operated axle drive shaft 54, and rotatably is supported on right half-shells 23R and the left half-shells 23L.The second long tween drive shaft 60 is arranged in the place ahead of first tween drive shaft 58, and rotatably be supported on right half-shells 23R a part, leave on the part and change speed gear box 67 of left half-shells 23L of the longer distance of described part of right half-shells 23R.Second tween drive shaft 60 passes right half-shells 23R, extends in crankshaft room 84 and centrifugal clutch chamber 89.The miniature gears 58a and first tween drive shaft 58 are integrally formed, and gear 59 is installed on first tween drive shaft 58 and by serrations and this first tween drive shaft 58 and interlocks.Miniature gears 58a and driven wheel 55 engagements.Miniature gears 60a be formed on second tween drive shaft 60 its be supported near the end on the left half-shells 23L the part.Miniature gears 60a and gear 59 engagements.
Driven helical wheel 133 is installed on second tween drive shaft 60 of centrifugal clutch chamber 89.Outer oblique gear tooth 60h is formed in the periphery of second tween drive shaft 60.Internal helical gear tooth 133h is formed in the inner peripheral surface of driven helical wheel 133.Outer oblique gear tooth 60h and internal helical gear tooth 133h engagement.
Friction spring 134 (Fig. 2) with slotted ring shape of peristome firmly is bonded in the circumferential slot in the side face that is formed at driven helical wheel 133, to apply the friction drag of driven helical wheel 133 rotations of opposing.134 outstanding projection 134a are slidably engaged in the transverse groove 23x (Fig. 2) of the chi chung that is formed at right half-shells 23R from friction spring.
When the stretcher 57 of foot pedal starting mechanism 49 is stepped on downwards so that the elastic force of axle drive shaft 54 opposing return springs 64 and when rotating, be installed in foot-operated axle drive shaft 54 that miniature gears 58a engages on driven wheel 55 drive first tween drive shaft 58, make its rotating speed rotation to increase.Therefore, be installed on first tween drive shaft 58 and drive second tween drive shaft 60, make its rotating speed rotation to increase with miniature gears 60a gears in mesh 59 on second tween drive shaft 60.
When 60 rotations of second tween drive shaft, because the rotation of driven helical wheel 133 is owing to the friction drag that friction spring 134 applies thereon is restricted, therefore, the driven helical wheel 133 that is provided with internal helical gear tooth 133h moves right, internal helical gear tooth 133h and the outer oblique gear tooth 60h engagement that is formed in second tween drive shaft 60.The hook tooth 61r engagement of hook tooth 133r and gear 61.Therefore, driven helical wheel 133 and gear 61 are with 60 rotations of second tween drive shaft.Because gear 61 and driven gear 63 engagements that are installed on the bent axle 37, therefore, bent axle 37 is forced to rotation, with starting apparatus combustion engine 21.
When stretcher 57 unclamped after being depressed, return spring 64 made foot-operated axle drive shaft 54 and foot-operated arm 56 get back to their initial position.Therefore, first tween drive shaft 58 and second tween drive shaft 60 rotate along opposite direction, and driven helical wheel 133 is moved to the left by the effect of ingear beveled gear teeth 60b and 133h, and hook tooth 61r separates with 133r.
Preferred implementation as herein described has following effect.
(1) owing to holds the outside that the centrifugal clutch chamber 89 of wet-type centrifugal clutch 95 is formed on crankcase 23, and centrifugal clutch chamber 89 separates by right half-shells 23R and crankshaft room 84, therefore, crankshaft room 84 and centrifugal clutch chamber 89 can hold the lubricating oil of suitable oil level respectively.Because centrifugal clutch chamber 89 and crankshaft room 84 separate each other, therefore, crankshaft room 23 can form rigid construction.Because wet-type centrifugal clutch 95 is arranged in the outside of crankshaft room 23 and is covered by change speed gear box 67, therefore, can form centrifugal clutch chamber 89 under the situation of not using optional feature, does not therefore increase manufacturing cost.
(2) because foot pedal starting gear chamber 99 is communicated with crankshaft room 84, therefore, the volume of foot pedal starting gear chamber 99 can be used for holding lubricating oil and as the volume of the bottom (food tray) of crankshaft room 84.Therefore, power unit 20 can hold the lubricating oil of the optimal number with best oil level.
(3) because on the opposition side of the line of centers of cylinder-bore 70 and the central axis that V-belt drive stepless speed variator 35 lays respectively at main frame 3, therefore, the corresponding counterweight of right part on the opposition side of the central axis that lays respectively at main frame 3 of power unit 20 and left part balance well each other.
(4) clutch drum 125 of the wet-type centrifugal clutch 95 junction surface F that is positioned at the right half-shells 23R that comprises crankcase 23 and change speed gear box 67 the plane on. Foundry goods case 23 and 67 the open end that wherein forms face of joint have maximum area respectively, and this is because foundry goods case 23 becomes to be convenient to remove foundry goods case 23 and 67 from mould with 67 sidewall design.By maximum part being placed on the plane that comprises the junction surface F of wide open end, and change speed gear box 67 is formed with small size.
(5) because V-belt 40 extends in the outside of the junction surface G of change speed gear box 67 and transmission case cover 68, therefore, be beneficial to the operation of changing V-belt 40.Because the major part of change-speed box chamber 90 is limited by the transmission case cover 68 that removes easily, therefore, can clean change-speed box chamber 90 easily.
(6) because half one 117 of fixing of driven pulley 94 is placed on the outside of junction surface G of change speed gear box 67 and transmission case cover 68, therefore, further be beneficial to the operation of cleaning change-speed box chamber 90.
Claims (according to the modification of the 19th of treaty)
1. power unit that is used for vehicle, this power unit comprises:
Crankcase, the bent axle of this crankcase encapsulation combustion engine is parallel to the width horizontal expansion of vehicle;
The V-belt drive stepless speed variator, this V-belt drive stepless speed variator comprises: the rotating band wheel shaft, this rotating band wheel shaft can rotate with described bent axle; Driven belt wheel shaft, this driven belt wheel shaft are parallel to described rotating band wheel shaft and extend; Driving pulley, this driving pulley are installed on the described rotating band wheel shaft; Driven pulley, this driven pulley are installed on the described driven belt wheel shaft; And V-belt, this V-belt extends between described driving pulley and described driven pulley;
Change speed gear box, this change speed gear box are arranged on the side of described crankcase, and encapsulate described V-belt drive stepless speed variator;
Final output shaft, this final output shaft is arranged on the opposite side of described crankcase, the output of described combustion engine is delivered to the drive wheel of vehicle by transmission mechanism;
Wet-type centrifugal clutch, this wet-type centrifugal clutch are arranged on the side of described crankcase, are used for the described final output shaft of described driven belt wheel shaft and described power unit is connected effectively and separates; And
The centrifugal clutch shell, this centrifugal clutch shell is defined for the centrifugal clutch chamber that keeps described wet-type centrifugal clutch therein;
Wherein, the described centrifugal clutch shell that encapsulates described wet-type centrifugal clutch is arranged in the outside of described crankcase, and the lateral outer ends of described centrifugal clutch chamber covered by described change speed gear box, and
Wherein, form described centrifugal clutch chamber by engaging described crankcase and described change speed gear box.
2. the power unit that is used for vehicle according to claim 1, wherein, when when horizontal direction is watched, the foot pedal starting gear chamber is formed on the below in the space between described bent axle and the described wet-type centrifugal clutch, and with the internal communication of described crankcase.
3. the power unit that is used for vehicle according to claim 1, wherein, this power unit is installed on the vehicle, makes on the opposition side of central axis of the central axis of cylinder-bore and the main frame that described V-belt drive stepless speed variator lays respectively at car body.
4. according to each described power unit that is used for vehicle in the claim 1 to 3, wherein, described crankcase and described change speed gear box are foundry goods, and be included in clutch drum in the described wet-type centrifugal clutch be arranged in the face of joint that comprises described crankcase and described change speed gear box the plane.
5. according to each described power unit that is used for vehicle in the claim 1 to 4, wherein, described V-belt is positioned at the lateral outer side of the face of joint of described change speed gear box and transmission case cover.
6. the power unit that is used for vehicle according to claim 5, wherein, the fixed part of described driven pulley is arranged in the lateral outer side at the junction surface of described change speed gear box and described transmission case cover.
7. according to each described power unit that is used for vehicle in the claim 1 to 6, wherein, described bent axle and described rotating band wheel shaft are coaxial, the foot pedal starting driven gear of foot pedal starting mechanism is arranged on the described bent axle, be positioned at the axial position of described driving pulley, described change speed gear box is arranged in described driving pulley and described driven pulley to the inside, and it is indoor that described foot pedal starting driven gear is arranged in described centrifugal clutch.
Claims (6)
1. power unit that is used for vehicle, this power unit comprises:
Crankcase, the bent axle of this crankcase encapsulation combustion engine is parallel to the width horizontal expansion of vehicle;
The V-belt drive stepless speed variator, this V-belt drive stepless speed variator comprises: the rotating band wheel shaft, this rotating band wheel shaft can rotate with described bent axle; Driven belt wheel shaft, this driven belt wheel shaft are parallel to described rotating band wheel shaft and extend; Driving pulley, this driving pulley are installed on the described rotating band wheel shaft; Driven pulley, this driven pulley are installed on the described driven belt wheel shaft; And V-belt, this V-belt extends between described driving pulley and described driven pulley;
Change speed gear box, this change speed gear box are arranged on the side of described crankcase, and encapsulate described V-belt drive stepless speed variator;
Final output shaft, this final output shaft is arranged on the opposite side of described crankcase, the output of described combustion engine is delivered to the drive wheel of vehicle by transmission mechanism;
Wet-type centrifugal clutch, this wet-type centrifugal clutch are arranged on the side of described crankcase, are used for the described final output shaft of described driven belt wheel shaft and described power unit is connected effectively and separates; And
The centrifugal clutch shell, this centrifugal clutch shell is defined for the centrifugal clutch chamber that keeps described wet-type centrifugal clutch therein;
Wherein, the described centrifugal clutch shell that encapsulates described wet-type centrifugal clutch is arranged in the outside of described crankcase, and the lateral outer ends of described centrifugal clutch chamber is covered by described change speed gear box.
2. the power unit that is used for vehicle according to claim 1, wherein, when when horizontal direction is watched, the foot pedal starting gear chamber is formed on the below in the space between described bent axle and the described wet-type centrifugal clutch, and with the internal communication of described crankcase.
3. the power unit that is used for vehicle according to claim 2, wherein, this power unit is installed on the vehicle, makes on the opposition side of central axis of the central axis of cylinder-bore and the main frame that described V-belt drive stepless speed variator lays respectively at car body.
4. according to each described power unit that is used for vehicle in the claim 1 to 3, wherein, described crankcase and described change speed gear box are foundry goods, and be included in clutch drum in the described wet-type centrifugal clutch be arranged in the face of joint that comprises described crankcase and described change speed gear box the plane.
5. according to each described power unit that is used for vehicle in the claim 1 to 4, wherein, described V-belt is positioned at the lateral outer side of the face of joint of described change speed gear box and transmission case cover.
6. the power unit that is used for vehicle according to claim 5, wherein, the fixed part of described driven pulley is arranged in the lateral outer side at the junction surface of described change speed gear box and described transmission case cover.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-023623 | 2008-02-04 | ||
| JP2008023623A JP5314290B2 (en) | 2008-02-04 | 2008-02-04 | Vehicle power unit |
| PCT/JP2009/050197 WO2009098913A1 (en) | 2008-02-04 | 2009-01-09 | Vehicle power unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101932472A true CN101932472A (en) | 2010-12-29 |
| CN101932472B CN101932472B (en) | 2013-08-21 |
Family
ID=40951991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801040198A Expired - Fee Related CN101932472B (en) | 2008-02-04 | 2009-01-09 | Vehicle power unit |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2241469A4 (en) |
| JP (1) | JP5314290B2 (en) |
| CN (1) | CN101932472B (en) |
| BR (1) | BRPI0908526A2 (en) |
| TW (1) | TWI365817B (en) |
| WO (1) | WO2009098913A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044450A (en) * | 2013-03-15 | 2014-09-17 | 川崎重工业株式会社 | Structure for coupling v-belt type continously variable transmission with engine |
| CN104110302A (en) * | 2013-04-17 | 2014-10-22 | 光阳工业股份有限公司 | Engine |
| CN103158539B (en) * | 2011-12-12 | 2016-01-06 | 光阳工业股份有限公司 | Vehicle transmission gear |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI575850B (en) * | 2016-02-24 | 2017-03-21 | Variable speed power generation module | |
| TWI575851B (en) * | 2016-02-24 | 2017-03-21 | Variable speed power generation device | |
| WO2020066878A1 (en) * | 2018-09-25 | 2020-04-02 | 本田技研工業株式会社 | Power unit for straddle-type vehicles |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5799480A (en) * | 1980-12-09 | 1982-06-21 | Honda Motor Co Ltd | Automatic tricycle |
| JPS6250372U (en) * | 1985-09-18 | 1987-03-28 | ||
| JP2003222159A (en) * | 2002-01-29 | 2003-08-08 | Yamaha Motor Co Ltd | Clutch device for motorcycle |
| DE60330855D1 (en) * | 2002-04-08 | 2010-02-25 | Yamaha Motor Co Ltd | COUPLING MECHANISM LUBRICATION FOR ENGINE |
| JP2006082631A (en) * | 2004-09-15 | 2006-03-30 | Kawasaki Heavy Ind Ltd | Working vehicle, and assembly of engine and transmission thereof |
| JP5046372B2 (en) * | 2007-01-26 | 2012-10-10 | ヤマハ発動機株式会社 | Motorcycle |
-
2008
- 2008-02-04 JP JP2008023623A patent/JP5314290B2/en not_active Expired - Fee Related
-
2009
- 2009-01-09 CN CN2009801040198A patent/CN101932472B/en not_active Expired - Fee Related
- 2009-01-09 BR BRPI0908526A patent/BRPI0908526A2/en not_active IP Right Cessation
- 2009-01-09 EP EP09707562.6A patent/EP2241469A4/en not_active Withdrawn
- 2009-01-09 WO PCT/JP2009/050197 patent/WO2009098913A1/en active Application Filing
- 2009-02-02 TW TW098103248A patent/TWI365817B/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158539B (en) * | 2011-12-12 | 2016-01-06 | 光阳工业股份有限公司 | Vehicle transmission gear |
| CN104044450A (en) * | 2013-03-15 | 2014-09-17 | 川崎重工业株式会社 | Structure for coupling v-belt type continously variable transmission with engine |
| CN104044450B (en) * | 2013-03-15 | 2017-01-11 | 川崎重工业株式会社 | Structure for coupling v-belt type continously variable transmission with engine |
| CN104110302A (en) * | 2013-04-17 | 2014-10-22 | 光阳工业股份有限公司 | Engine |
| CN104110302B (en) * | 2013-04-17 | 2017-04-12 | 光阳工业股份有限公司 | Engine |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0908526A2 (en) | 2019-02-26 |
| JP2009184399A (en) | 2009-08-20 |
| TW200940374A (en) | 2009-10-01 |
| WO2009098913A4 (en) | 2009-11-26 |
| JP5314290B2 (en) | 2013-10-16 |
| EP2241469A1 (en) | 2010-10-20 |
| EP2241469A4 (en) | 2016-08-10 |
| CN101932472B (en) | 2013-08-21 |
| TWI365817B (en) | 2012-06-11 |
| WO2009098913A1 (en) | 2009-08-13 |
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Granted publication date: 20130821 Termination date: 20170109 |